Scraper



Jan. 4`27, 1925. 1,524,096

, L. P. GREEN SCRAPER Filed Jan. 14, .1924

SCRPER.

`Application led January 14, 1924. Serial No. 686,001.

My invention relates to improvements inA Scrapers, and more particularly to the type of scraperknown as drag Scrapers, adapted and arranged to move material by being dragged to and fro thereover, the object of the invention being to provide a simple and efficient construction of this character capable of a wide variety of uses.

Other objects will appear hereinafter. The invention consists in the combinations and arrangements of scribed and claimed. rll`he invention will be best understood'by reference to the accompanying drawing forming a part oft-his specification, andiin'` which Fig. 1 is a perspective view of a scraper embodying the invention;`

.1 2, a side view of the same shown l d 3lly in section; vFig; 3, a section taken on line 3 3 of Fig. 2, and

z Fig. 4, a side view of the forward portion of a scraper embodying a modified form of construction.

The form of construction illustrated in Figs. 1, 2 and 3 comprises a scraper ,body consisting of two divergent vertical side walls 5l converging to an apex at the rear v where they are secured together and provided with rearwardly extending adjoining lips 6 to which the rear vdrag cable 7 is l0 attached as indicated. The upper portions of sides 5 are forwardly bevelled at thecrear and a closureplate 8 secured over said forwardly bevelled edges to re-enforce and strengthen the construction at this point and t5 also to prevent the formation of an acute angle into which the material wouldltend. to pack and stick. A forwardly and down# wardly inclined guard plate 9 is also secured between the sides 5 at thefrearapex 'so as and the edges of these blades are .re-enforced' to guide thescraper on a straight path dur- :rng operation and also strengthen and stiften parts hereinafter deto cutlthe apex proper from the body .of the by strips 11 as shown, the forward edges of the strips 11 and the blades 10 being extended somewhat beyond the body of the scraper to form the digging points 12 as 60 indicated. 'llhe upper forward portions 13 of the sides 5 are bent into parallel relation with each otherto` form vertically extending parallel guides; or keel plates which tend tlie construction. The usual'branches 14 of the forward drag cable are adjustably secured to the forward edges of the guide plates 13- as shown.

A cover plate 15 is secured across the top of the scraper being supported on and bolted to cross bars 16 as shown. The cover plate 15 is materially less in area than the top of scraper body so as to leave open spaces around the' sidesand the rearthereof to permit the escape of water through the top of the scraper when in operation. The side edges of the cover plate 15 are turned upwardly and flared outwardly to constitute guard flanges as indicated.

By this arrangement a strong, durable and efficient construction is provided capable of awide vvariety of uses. ln operation,' when the body of the scraper has become lled with material the same tends to exert an upward tendency on the cover plate 15 and thus prevent any further digging or scraping' action and thus preventing overloading of the scraper and useless expenditure of energy. When operated under water the openings "around the side edges and rear of the cover plate permit of the ready escape of water through the top of the scraper andthe consequent iilling ol' the body of the scraper with solid material to be moved. rl`he guard Hanges 17 tend to prevent the deposit of material on top of the cover plate and also stiifen the construction. When the scraper is moved to and fro over the material to be moved in the usual manner by means of the cables 7 and 14, the `scraper body will be filled with material during the forward .movement and will then ride upon this material as long as the forward movement is continued, and thus carry said material with it to the desired point of deposit. Then the motion of the scraper is reversed andthe material de` posited at the desired point in the usual way.- f 'f In the modified form of construction illusy;

trated in Fig. 4 the vertical guide or keel plates 13 have'been omitted and dispensed with and the capacity of the scraper correspondingly diminished. Otherwise the construction is the same as that already described. p

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and .modification without departing from the spirit of the invention. I, therefore, do not. wish to be limited to the precise details of construction set forth, but desire to avail myself oli such variations and modifications as come within the scope ot the appended claims.

.l-Iaving described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A scraper comprising a scraping body open at the bottom and provided with sides and a cover plate, said sides being adapted and arranged to collect material and force it upwardly against the underside of said cover plate to elevate the scraper when lilled, there being openings in said cover plate to permit the escape of water through the top ot' said scraper, substantially as described.

2. A scraper comprising a scraping body open at the bottom and provided with divergent sides and a coverV late, said sides being adapted and arrange to collect material and force it upwardly against-the underside of said cover plate to elevate the scraper when filled, there being openings in said cover plate to permit the escape of water through the top of said scraper, substantially as described.

3. A scraper comprising al scraping body open at the bottom and provided with sides and a cover plate, said sides being adapted and arranged to collect material and force it upwardly against the underside of said coverplate to elevated the scraper when lilled, there being openings around the sides and rear of said cover platev to permit the escape of water from the top of said scraper, substantially as described.

`4. A scraper comprising a body open at the bottom and provided with divergent sides having inwardly turned lower edges and a cover plate, said sides being adapted and arranged tocollect material and force it upwardly against the underside of said cover plate to elevate the scraper when filled, there being openings around the sides and rear of said cover plate to permit the escape of water from the top ot said scraper, substantially as described.

5. A scraper comprising a scraping body open at the bottom and provided with sides and a .cover plate, said sides being adapted and arranged to collect material and force it upwardly against the underside ot said cover plateI to elevate the scraper when filled, there being openings around the sides and rear of said cover plate to permit the escape of water from the top ol said scraper, and upwardly and outwardly flaring guards at the side edges ot said cover plate, substantially as described.

6. A scraper comprising a body open at the bottom and provided with divergent sides having inwardly turned lower edges and a cover plate, said sides being ada ted and arranged to collect material and 'cree it upwardly against the underside of said cover plate to elevate the scraper when filled, there being openings around the sides and rear ot' said cover plate to permit the escape of water from the top of said scraper, and upwardly and outwardly flaring guards at the side edges of said cover plate, substantially as described.

7. A scraper comprising forwardly divergent sides; and a guard plate between said 'sides at the rear cutting dit' the apex of said sides from the body ofthe scraper,

substantially as described.

8. A scraper comprising forwardly divergent sides having inwardly turned lower edges; and a guard plate between said sides at the rear cutting oil' the apex of said sides rfrom the body of said scraper, substantially as described.

9. A scraper comprising a body open at the bottom and provided with divergent sides having inwardly turned lower edges, said lower edges extending forwardly well beyond the body of the scraper, and a cover plate, said sides being adapted and arranged to collect material and lorce it upwardly against the underside of said cover plate to elevate the scraper when filled, there being openings around the sides and rear edge of said cover plate; and upwardly and outwardly flaring guards at the side edges of said cover plate, substantially as described. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LESLIE P. GREEN. Witnesses:

FREDA C. ArrLE'roN, JOSHUA R. H. Porrs. 

